Hictop prusa i3 3dp-11 firmware update(no save fnc on lcd?) and aut.lvl.Z etc probl.

[Roberts_Clif]

If you bring up the UBL Bed Leveling System, the accuracy of the Z-Probe doesn't really matter. If the probe is super accurate, it save 10 or 15 minutes of setup time. But even with a horrible Z-Probe (or no Z-Probe) you can generate a mesh and fine tune it in 30 or 40 minutes. And from then on... Your "Good to Go".

I too have rid myself of the SN04-N, But not because it was not accurate. It worked faithfully for 8 months.
Changed because wanted a proximity sensor that could be placed within 10mm of the nozzle. Chose the TL-W3M and Decided on 25mm to center of the sensor.
The Proximity sensor Mount adjustment screw allows me to change and calibrate bed surface within a couple of minutes.

Have three bed Surfaces I use, The one you see is the most used surface as adhesion is the great, and calibration takes only a minute. you do not have to be within a micron for it to work well.
This surface is Medium tack Transfer Tape for Vinyl lettering. As tape widths can range from 2 inches to 36 inches, I can install the transfer tape in one piece, using a Vinyl Transfer Applicator of my own design. Apply the Medium tack Transfer Tape right over the BuildTac surface. Trim the Vinyl Transfer paper to the Shape of the bed.
Best of all can use many time without changing the adhesive paper between prints.


The Other surface used is a BuildTac with which have problems with adhesion and takes many times longer to get a correct calibration, and still will not have adequate adhesion on complicated designs.


Now for the last Surface a Releasable Pressure Sensitive Adhesive.

A Releasable Pressure Sensitive Adhesive applied the Vinyl Transfer Paper to the Bed.
Start with applying the Vinyl Transfer Paper to the Bed, Sand with a 1000 grit sand paper, and wipe the dust from the Transfer Paper with a dry cloth.
The Transfer paper need not be trimmed at this time

A Releasable Pressure Sensitive Adhesive such as a Carper glue can be applied to the Vinyl Transfer Paper in a very thin layer.
Using a putty knife dip out about 2 teaspoons of carpet glue spread across the Vinyl Transfer Paper to a thin even level, apply more Glue as needed. Allow 20 minutes drying time to translucent.

Trim the Vinyl Transfer paper to the Shape of the bed. Now you are ready to print.
This works on very complicated shapes at high speeds. Nozzle height is barely an issue.
And I have printed multiple items of the same in the same spot without reapplying glue, and if a spot gets thin apply a drop of glue with your finger to re cover the bare spot.

If you get into a hurry with the Releasable Pressure Sensitive Adhesive it is a mess getting off the parts as it is a permanent glue when used wet.
However when wet the glue is water soluble.

Best method is the Vinyl Transfer Paper.


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Sample bed leveling
Auto home, lower nozzle to lowest z -axis level test for correct height.
If height incorrect adjust Proximity sensor thumb screw. Repeat until desired height acquired (If no Proximity sensor adjust Z-Axis end-stop switch this too could have a calibration thumb screw adjustment made to fit)

when desired height is acquired. Disable steppers and move bed and nozzle to a corner, and adjust bed leveling thumb screw to desired height.
repeat for all four corners and center of bed

Bed Leveling is complete. (This assumes that the X-Axis is level if not level X-Axis first)

Or you can Use Auto Bed Leveling Linear with a G29 command in the Cura G-Code, that is if your Firmware has this Auto Bed leveling feature. Bed leveling has to be preformed for every print, no save feature in Marlin as of this date.